Mergers of Globular Clusters
Astrophysics
2009-10-28 v1
Abstract
Globular clusters with composite color-magnitude diagrams, such as NGC 1851, NGC 2808 and Fornax No. 3, might have formed by mergers. It is suggested that each of these objects had two parent clusters, one with a red horizontal branch and another with a blue horizontal branch. Such mergers could have occurred if both ancestral objects were originally members of a single dwarf spheroidal galaxy in which the internal velocity dispersion was low.
Cite
@article{arxiv.astro-ph/9609095,
title = {Mergers of Globular Clusters},
author = {Sidney van den Bergh},
journal= {arXiv preprint arXiv:astro-ph/9609095},
year = {2009}
}
Comments
10 pages, no figures. Also available at http://www.dao.nrc.ca/DAO/SCIENCE/science.html